FAULT CODE 012, 013, 014 OR 015: OVERHEATING, EXCESSIVE TEMPERATURE AT FLAME SENSOR, POSSIBLE OVERHEATING DETECTED OR TOO MANY OVERHEATS. (Cont) -726250868

TM 9-2320-364-34-1

3. FAULT CODE 012, 013, 014 OR 015: OVERHEATING, EXCESSIVE TEMPERATURE

AT FLAME SENSOR, POSSIBLE OVERHEATING DETECTED OR TOO MANY

OVERHEATS (CONT).

TEST OPTIONS

KNOWN INFO

WARNING

Read WARNING

Visual inspection.

Arctic heater coolant level

on Page 2-766.19

checks OK unit level.

Arctic heater coolant hoses and

REASON FOR QUESTION

valves check OK unit level.

If system is in lockout due to too

Arctic heater temperature sensor

many overheats, arctic heater

OK.

Does arctic heater operate?

will not operate and arctic heater

Arctic heater overheat sensor OK.

indicator light will flash flash code

Arctic heater flame sensor OK.

015.

Arctic heater coolant pump OK.

POSSIBLE PROBLEMS

Arctic heater in lockout mode

If arctic heater indicator light

(fault code 15 active).

flashes flash code shown and

the fault code retrieval device

(FCRD) is not available, re-

place arctic heater control unit

(Para 18-2.2). Verify repair,

go to Step 6 of this Fault.

If arctic heater fault code re-

trieval device (FCRD) dis-

plays a fault code 15 or the

arctic heater indicator light

flashes flash code shown and

the fault code retrieval device

(FCRD) is available, go to

Step 5 of this Fault.

YES

Go to Step 6 of this

Fault.

2-184

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